Psoriasis is a long-term autoimmune disease that causes the rapid buildup of skin cells, leading to scaling, inflammation, and discomfort. While the condition primarily affects the skin, it can also have significant effects on overall health and well-being. Many people with psoriasis experience physical discomfort, emotional distress, and even complications related to other health conditions.

One of the key characteristics of psoriasis is its unpredictability. Flare-ups can occur at any time and can be triggered by various factors, including stress, infections, certain medications, and even weather changes. The condition is not contagious, but it often runs in families, suggesting a genetic component. Research indicates that psoriasis results from an overactive immune system, where the body mistakenly attacks healthy skin cells, causing them to regenerate too quickly.

There are several types of psoriasis, with plaque psoriasis being the most common. This type appears as raised, red patches covered with silvery scales, typically found on the scalp, elbows, knees, and lower back. Other forms include guttate psoriasis, which presents as small, red spots; inverse psoriasis, which affects skin folds and is often aggravated by friction and sweating; and pustular psoriasis, characterized by pus-filled blisters. A more severe type, erythrodermic psoriasis, causes widespread redness, peeling, and intense itching, often requiring immediate medical attention.